Yvette, I'm interested to know how you kept your steaks at 56 degrees for 2 hours - did you use a water bath, or a thermomix, or some kind of gadget to modify a slow cooker? (If either of the two latter options, did you test the water temperature at any point to check it?). It's a bloody shame (pun intended!) to ruin good fillet steak!!
Did it look medium rare when it came out? Or look over-cooked?